Performance Monitor

Updated: 11/06/2021 by Computer Hope

The Performance Monitor is a utility in Windows Vista, 7, 8, and 10 for monitoring the computer performance in real-time or from a log. The picture below is an example of the Performance Monitor running in real time, graphing the percentage of the processor time. Additional values can be added to the chart by right-clicking the chart and clicking Add Counters.

Windows Performance Monitor

How to open the Windows Performance Monitor

  1. Click the Start.
  2. In the Search box, type performance and press Enter for Performance Monitor.


  1. Click the Start.
  2. Type perfmon and press Enter.

Reliability Monitor, Software terms